My OS is Linux (kernel 4.08.something) and AIX (7100-04-01-1543), the used ksh versions are:
ksh88: Version M-11/16/88f (AIX)
ksh93: Version M 93t+ 2009-05-01 (AIX), Version M 93u (Linux)
When writing a parser for stanza files in ksh i encountered a rather strange behavior. Here is a stripped down version of the parsing loop (i left out the actual parsing for clarity if anyone is interested i can post it), i marked the two critical lines in bold:
Here is the output of this with the sample file (1 line) containing item=value, which works as expected:
Now, because i wanted to have comments in my stanza files (which the parser should filter out), but needed to make escaped comment chars possible i tried with the line item=val\\#ue. Here is the output running above script with with ksh88, which is as expected:
But - and this is where it gets weird - if the script is run with ksh93, the characterwise chopping off from the main string stops to work correctly:
Notice, that as long as the escape char is present in the string the variable expansion in the two marked lines seems not to work correctly.
Does anyone have an explanation for this or have i just encountered a bug?
If have
var='$variable'
how can I expand $variable.
I have tried many thing like duble quotes/braces etc, but nothing worked.
I need the solution ASAP. (2 Replies)
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Hi everyone !
Im trying to know from wich version of AIX KSH93 is available ?
Internet tell me 6.x and 7.x AIX are available, bue what about 5.x ?
Is KSH93 available on AIX 5.x ?
Is it the same way to manipulate variables as KSH93 on 7.x ?
Thanks for your support and have a nice day ! (2 Replies)
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